Connect Claude Cowork to Microsoft 365: Outlook, Teams, SharePoint & Calendar

About this video

David shows how to connect Claude Cowork to Microsoft 365 and then extend it beyond the built-in connector’s limits. Setup: in the Claude Desktop app go to Customize > Connectors > Add > Browse Connectors, find Microsoft 365, connect and sign in with a work account (IT admin approval may be required). With it, Claude can search Outlook for emails needing attention and pull data from a SharePoint Excel file into chat, adding a researched column. Newer write and delete tools — which a company Claude admin must approve — let Claude act: it finds an onboarding guide across SharePoint sites for Henrietta, drafts and, after clicking Allow Once, sends the email in Outlook; it books a 30-minute Teams meeting for Thursday at 10 a.m. and moves it to Friday at 2 p.m., each with approval; and in about 15 minutes it researches prospects for a meeting with the Kevin Cookie Company, creates a Word doc and uploads it to a SharePoint folder. The built-in connector cannot send Teams messages or handle attachments, so the video adds Zapier MCP (create an MCP server, add Microsoft Teams send channel message and Office 365 send email tools, paste the server URL as a custom connector in Claude) to post to a Teams General channel, and the Zapier SDK to download Johannes’s contract attachment, fill in details and signature from a local folder, and reply with the signed PDF as a draft for approval — again about 15 minutes.

Key takeaways

• Connect Microsoft 365 via Claude Desktop: Customize > Connectors > Add > Browse Connectors, then sign in — admin approval may be needed, especially for write/delete tools
• The connector can read Outlook and SharePoint, and with write tools can send email and create/move calendar events, always after an Allow Once approval
• Sending email and creating events require your approval; review drafts first because spacing or document errors can slip through
• Claude can chain research, document creation and SharePoint upload in one Cowork task, though the demo research task took about 15 minutes
• Use Zapier MCP for Teams channel messages and the Zapier SDK for email attachments, which the built-in Microsoft 365 connector cannot do

Episode details: published August 12, 2026 · 8:58 long. Summary written by Self Growth Videos from the episode itself. Business results and any income figures mentioned are Kevin Stratvert’s own claims, shared for education — they are not typical or guaranteed.

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